//
//  YYXJdataModel.m
//  XJHistory
//
//  Created by 杨毅 on 16/12/27.
//  Copyright © 2016年 杨毅. All rights reserved.
//

#import "YYXJdataModel.h"

@implementation YYXJdataModel
+(BOOL)propertyIsOptional:(NSString *)propertyName{
    return YES;
}
@end
